SIMPLE SENTENCES:
Sentence with one main clause
I am reading.
She is writing.
He is walking.
It is sleeping.
I am eating.
I am chatting.
COMPLEX SENTENCES:
sentence with one main clause and one or more subordinate clause
Although I don’t have a good voice, I sing a song on the stage.
If you eat too much of ice-cream, you will fall in sick.
Even though it was cool, I didn’t ware sweater.
Although his handwriting is worse, he participated in handwriting competition.
If you were dog, you would know its pain.
COMPOUND SENTENCES:
sentence with one or more main clause and one subordinate clause
He is running and she is watching.
He is eating and it is playing.
He is writing and they are dancing.
He is studying and she is listening.
He is chatting and they are singing.